{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0x1999b6afbdf70c2737402f6750f2744d76e712658db36fa713121ccceade2fdd",
    "signature": "0x55d1bbec412227beaf20f7d5b509eef2f19a40054882e13f43891e2fd30d26916e9cadd228d9e4210c1cefc21ff27df54f7d37ae1678e31451d1da22e9c82e711c",
    "signer": "0x8C7bee798c0AB93Df67Cd00879d67b02274644CF",
    "userId": "855403"
  }
}